How to maintain your electric bicycle battery?
The battery is the heart of your electric bike. Proper maintenance will help you maximize its lifespan. Here are some tips to take good care of your e-bike battery.
Key takeaways:
Recharge your battery before the charge level drops below 20–30%, avoid keeping it permanently charged at 100%, and only use the original charger.
Store your battery at around 40% charge in a dry, cool, temperate place.
Protect your battery by avoiding exposure to extreme temperatures.
Clean your battery regularly using a clean, dry cloth.
1. Charge your e-bike battery correctly
Une bonne gestion de la charge est essentielle pour préserver l’autonomie de votre batterie et bien l’entretenir.
Lors des 5 premières utilisations de votre batterie de vélo, chargez et déchargez votre batterie au maximum. Lisez attentivement la documentation fournie avec votre batterie et votre chargeur.
Lors de la mise en charge de votre batterie, branchez dans un premier temps votre chargeur à votre prise murale avant de le lier à votre batterie. Pourquoi ? Au moment du branchement de votre chargeur avec votre prise murale, un arc électrique peut se former. Si les chargeurs sont conçus pour absorber cet arbre électrique sans endommager le chargeur, la batterie n’est cependant pas conçue pour. Consultez nos articles d’experts pour savoir quand et comment recharger la batterie de votre vélo.
Proper charging management is essential to preserve your battery's range and keep it in good condition.
During the first five uses of your e-bike battery, fully charge and discharge it. Read the documentation supplied with your battery and charger carefully.
When charging your battery, always plug the charger into the wall socket first before connecting it to the battery. Why? When you plug the charger into the mains, an electric arc may occur. Chargers are designed to absorb this electrical arc without being damaged, whereas the battery is not. Read our expert articles to learn when and how to recharge your e-bike battery properly.
Expert tip
Doris - Customer Service & Product Coordinator at Doctibike
"Use the original charger provided by the manufacturer to ensure stable charging and avoid surges or micro-faults that could damage the battery or cause thermal issues. If you need a replacement, choose a compatible charger."
2. Avoid deep discharge
Never allow your battery to become completely discharged. Recharge it before the charge level drops below 20–30%. To extend your battery's lifespan, avoid constantly charging it to 100%.
Remember to recharge your battery regularly, even if you are not using it (at least once a month). This helps prevent deep discharge, which occurs when an e-bike battery is completely discharged and left in that state for too long. Deep discharge can damage some of the battery cells, reduce its range and, in some cases, prevent it from functioning altogether. To learn more, read our article on whether you should remove the battery from your bike.
If you plan to store your battery for an extended period without using it, the ideal charge level is around 40% to minimise self-discharge. For example, depending on the storage temperature, a battery stored at 100% charge may experience up to 20% more self-discharge than one stored at a 40% charge level.
3. Clean your battery regularly
Cleaning your battery regularly helps preserve both its lifespan and its range. Before carrying out any cleaning, remove the battery from the bike and make sure it is switched off.
To clean the battery casing, simply use a soft, dry cloth to remove dust, mud and dirt accumulated during your rides. Pay particular attention to the battery connectors. They should remain clean and dry to ensure proper electrical contact. If necessary, clean them gently with a dry cloth.
Avoid using a pressure washer or spraying water directly onto the battery or its connectors. Although most batteries are designed to withstand the elements, excessive exposure to water can encourage corrosion and damage certain electronic components.
Handle your battery with care and make sure it is not subjected to impacts or shocks. If your battery has suffered a significant impact or shows signs of corrosion, take it to your nearest recycling centre or to a retailer equipped with a Batribox or Ecosystem collection point. Your battery will then be sent to a specialised recycling facility.
4. Store your battery correctly
Store your battery in a dry, cool place where it is protected from significant temperature fluctuations. Excessive heat can accelerate cell degradation, while very cold temperatures reduce battery performance. In addition, humidity can encourage corrosion of internal components and weaken the battery's electronic protection system. Ideally, store your battery in a well-ventilated room with a stable temperature, away from direct heat sources (radiators, direct sunlight, etc.) and extreme cold (such as an uninsulated garage during winter).
5. Protect your battery from extreme temperatures
While cold weather can temporarily reduce a battery's range, heat is generally far more harmful in the long term. Prolonged exposure to high temperatures accelerates the chemical ageing of the battery cells and leads to irreversible capacity loss.
Whenever possible, avoid leaving your battery inside a car parked in direct sunlight, near a heat source or in a poorly ventilated area during hot weather.
Proper battery care during winter is essential: discover all our experts' advice in our comprehensive guide.
Have you followed these maintenance tips but your battery is still losing power or has stopped working? Contact us for a free quote for your battery reconditioning!
